Send Email with HTML body format in Delphi

-
Sometime we need to send Email with HTML body format. So here I have explained two approach to send HTML Email by using Delphi.

1. By using TIDText object
With Indy components we can use same TIDSMTP and TIDMessage components to send a Email with normal Text body or HTML body in Delphi. But we also need to initiate a TIDText object so that we can set its ContentType = text/html to allow HTML body format. And if we need an Image in HTML body then we also need to attach that image to mail body. So for that we need to create a TIdAttachment object also.

Here are the code details how to use TIDText. 

And for this example I assume that we have already put TIDSMTP and TIDMessage component on form and also set required properties.

For more information how to use TIDSMTP and TIDMessage visit my following blog.

lSMTP    : TIdSMTP;
lMessage: TIdMessage;

procedure TFormEmail.HTMLEmailSendClick(Sender: TObject);
var
  lTextPart: TIdText;
  lImagePart: TIdAttachment;
begin
  // ... here we need to set required properties for SMTP component. for moe visit How to send Email in Delphi?//
    lSMTP.Host := 'xxx';
    lSMTP.AuthType := satDefault;
    lSMTP.Username := 'xxxx';
    lSMTP.Password := 'xxxx';

    lSMTP.Port := 587;

   lMessage.From.Address := 'yourGmailaddress@gmail.com';
  lMessage.Subject := 'My test email with HTML body';
  lMessage.Recipients.Add.Address := 'receipent@gmail.com';  
  lMessage.Body.Clear;

 // here we have initiated TIdtext object for plain text message in body//
  lTextPart := TIdText.Create(lMessage.MessageParts);
  lTextPart.Body.Text := 'This is a plain text message';
  lTextPart.ContentType := 'text/plain';
  
// here we have initiated another TIdtext object for HTML text message in body//
  lTextPart := TIdText.Create(lMessage.MessageParts);
  lTextPart.ContentType := 'text/html';  
  lTextPart.Body.Text := '<html><body><b>Hello World</b><a href="htmlbodyIMG0000.JPG" ></body></html>';  
  
// here we have initiated TIDAttachment object to add image file as attachment to mail as we have use this image in above HTML body message //
  lImagePart := TIdAttachment.Create(lMessage.MessageParts, 'htmlbodyIMG0000.JPG');
  lImagePart.ContentType := 'image/jpg';
  lImagePart.Headers.Add('Content-ID: <htmlbodyIMG0000.JPG>'); // if an image is used //

   // ... write your code to send a message for more visit How to send Email in Delphi? //
     lSMTP.Connect();
     try
        lSMTP.Send(email);
ShowMessage('Email sent');
     finally
        lSMTP.Disconnect();

     end;

end;

2. By using TIdMessageBuilderHtml object
TIdMessageBuilderHtml class to help you prepare the TIdMessage properly. So we need to create an object of this class and then we can use HTML property to add messages.

Here are the code detail how to use TIdMessageBuilderHtml .

And for this example also I assume that we have already put TIDSMTP and TIDMessage component on form and also set required properties.

For more information how to use TIDSMTP and TIDMessage visit my following blog.
How to send Email in Delphi?

IdSMTP    : TIdSMTP;
ldMessage: TIdMessage;

procedure TFormEmail.HTMLEmailSendClick(Sender: TObject);
var
  Htmlbuilder: TIdMessageBuilderHtml;
  imgfilename: string;
begin

    IdSMTP.Host := 'xxx';
    IdSMTP.AuthType := satDefault;
    IdSMTP.Username := 'xxxx';
    IdSMTP.Password := 'xxxx';
    idSMTP.Port := 587;
  imgfilename := 'C:\img1.jpg'; // if images in HTML body//

  try
    Htmlbuilder := TIdMessageBuilderHtml.Create;
    try
         Htmlbuilder.Html.Add('<html>');
         Htmlbuilder.Html.Add('<head>');
         Htmlbuilder.Html.Add('</head>');
         Htmlbuilder.Html.Add('<body>Hello World</body>');
         Htmlbuilder.Html.Add('</html>');
         Htmlbuilder.HtmlCharSet := 'utf-8';
         Htmlbuilder.HtmlFiles.Add(imgfilename, 'us.jpg');

// if you want to add unrelated HTML attachment like PDF file as mail attachment //
         Htmlbuilder.Attachments.Add('c:\filename.pdf');

        ldMessage:= Htmlbuilder.NewMessage(nil);
ldMessage.From.Address :=  yourGmailaddress@gmail.com; // please change to your gmail address //;
ldMessage.Subject := 'Test Email Subject';
ldMessage.Body := 'Test Email with HTML body';
ldMessage.Priority := mpHigh;  

        IdSMTP.Connect();
        try
  IdSMTP.Send(email);
  ShowMessage('Email sent');
        finally
  IdSMTP.Disconnect();
        end;

    finally
      Htmlbuilder.Free();  
    end;

  except
    on E: Exception do
      ShowMessage('Failed: ' + E.Message);
  end;
end;

Comments

  1. wimApril 13, 2021 at 7:30 AM

    Thank you. Shouldn't this
    Htmlbuilder.Html.Add('');
    Htmlbuilder.Html.Add('');
    Htmlbuilder.Html.Add('');
    Htmlbuilder.Html.Add('Hello World');
    Htmlbuilder.Html.Add('');
    be just
    Htmlbuilder.Html.Add('Hello World');

    ReplyDelete

Post a Comment

Popular posts from this blog

MS Excel Automation in Delphi

-
In this blog I will describe how to read and write data from and to an Excel file. Sometime in our application we use Excel for reporting purpose, for data import / export purpose and for other works. So here I will explain how to access an Excel file and use for data read / write. For this Excel 2003 or later should have installed in our system. First use Excel2000 unit to uses clause. This unit comes with Delphi installation it self. You can get the unit in installed path C:\Program Files (x86)\Embarcadero\RAD Studio\10.0\OCX\Servers Uses    Excel2000; Before proceed I would mention an important word  LCID which is required at most places. So what it LCID? LCID = In Microsoft Excel, the LCID indicates the currency symbol to be used when this is an xlListDataTypeCurrency type.  Returns 0 (which is the Language Neutral LCID) when no locale is set for the data type of the column. We can get LCID in Delphi by using  GetUserDefaultLCID...
Read more

ShellExecute in Delphi

-
ShellExecute in Delphi – Launch external applications. ShellExecute is Delphi Windows API function that is mostly used for launch external applications from our Delphi application. This function is linked to the ShellExecute Windows  API function. The function returns an integer that corresponds to an error code which is very useful when we need to show some status  if the function worked  or not . By using ShellExecute we can also do following operations.... Can print documents from within my program, without explicitly starting the application  that created the document, such as: print a Word-document without starting Word. Can open browser with a local HTML page Can surf to a site i.e. open an external URL link from a Delphi application Can send mails thorugh outlook Syntax of Windows API function HINSTANCE ShellExecute(   _In_opt_        HWND hwnd,   _In_opt_        LPCTSTR lp...
Read more

Drawing Shapes in Delphi

-
Image
Believe me, drawing shapes in Delphi is so easy. To develop a software like CAD, Paint, CorelDraw Delphi provides large number of classes and members that supports to draw shapes on a form or on a graphic control. In Delphi, we draw shapes on canvas of a form or graphic controls. Canvas is an area of form where we can draw shapes, lines and can fill colors on shapes. In Delphi, every form or graphic controls have Canvas property which provides TCanvas object that can be used to draw shapes. TPen object is used to draw lines and we can set size, color of lines. TBrush object is used to set color and style to fill the shapes. Most frequently used classes for drawing shapes are TCanvas , TBitmap, TGraphics, TPen, TBrush TCanvas Use TCanvas as a drawing surface for objects that draw an image of themselves TBitmap   Bitmap is a powerful graphics object used to create, manipulate (scale, scroll, rotate, and paint), and store images in memory and as files on a disk....
Read more